Essential Oil Distillation: An Introduction

Essential Oil Distillation: An Introduction


Essential oils are increasingly used as tools in the alleviation of symptoms and treatment of conditions. However, often enough there is little awareness about the way essential oils are produced, what the exact definition of essential oil is and why it is important to be precise about this subject. This seminar will start by discussing the meaning of the term essential oil, the different descriptions and available definition of essential oils, what are the differences between essential oils and other herbal products. It will then cover the different allowed method of production, distillation, and mechanical processing, and will cover the most important differences in these methods, and their consequences on the chemistry of essential oils and hydrolats. The final part will be dedicated to an overview of the emerging new technologies and on some practical advice on distillation and some myth-busting.

What You’ll Learn

  • why essential oils are called so
  • difference between a description and a definition of an essential oil
  • the importance of discriminating between extracts and distillates
  • the relationship between essential oils and hydrolats
  • the basic principles of the physics of distillation
  • the pros and cons of the different modalities of distillation, and how they influence quality
  • the mechanical processing of Citrus fruits, and how the end product differs from distilled essential oils
  • the importance of new and green technologies applied to distillation
  • the importance of critical thinking applied to distillation methods

What’s Included With Your Course

✔ Instant course access
✔ Lifetime course access
✔ 24/7 online access to course
✔ PDF of certificate of completion
✔ Certificate of completion available immediately upon finishing the course
✔ CEs / PDAs as outlined below

Course Content

  • Welcome! 5min
  • What’s in a Word? 32min
  • Methods of Production 32min
  • Direct and Indirect Steam Distillation 31min
  • Hydrodistillation and Hydrodiffusion 25min
  • Mechanical Processing of Citrus Fruits 16min
  • Reducing the Ecological Footprint 45min


Marco Valussi studied Forestry in Italy before moving to the UK where he gained his Diploma in Bodywork and aromatherapy from ITHMA, and his BSc (Hons.) in Herbal Medicine from Middlesex University. He’s been involved with medicinal plants and essential oils for 25 year, as a professor at various Master Degrees in Italy (Padua, Siena, Pisa and Florence), as a consultant for the herbal and EO industry and for the medical and pharmacists professional organizations, as a writer, a researcher and as a distiller.

He's currently production manager and scientific director of a distilling company in the heart of the Dolomites, a local, short production chain for high quality artisan essential oils and aromatic waters. His recent research interests are in Forest Bathing, antiviral activities of EOs, and the biological activities of EOs in light of evolutionary theory. He has published more than 100 articles on professional magazines, 15 scientific papers, and a University textbook on EOs.

Continuing Education Approvals

  • Canadian Federation of Aromatherapists (CFA)

    3.25 CEUs total (up to 3.25 CEUs Category A) -Direct Approval
  • National Association for Holistic Aromatherapy (NAHA)

    3.25 CE credits total -Direct Approval
  • New Hampshire Association of Naturopathic Doctors (NHAND)

    3.25 CEUs total (up to 3.25 CEUs General) -Direct Approval
  • Vermont Office of Professional Regulation (VT OPR)

    3.25 hours total (up to 3.25 hours General) -Direct Approval
  • Alliance of International Aromatherapists (AIA)

    3.25 CPDs total (up to 3.25 CPDs Category A) -Assumed Approval
  • Arizona Naturopathic Physicians Medical Board (AZ NPMB)

    3.25 CMEs total (up to 3.25 CMEs General) -Assumed Approval
  • Aromatherapy Registration Council (ARC)

    3.25 hours total -Assumed Approval
  • College of Naturopathic Doctors of Alberta (CNDA)

    3.25 continuing competence credits total -Assumed Approval
  • College of Naturopathic Physicians of British Columbia (CNPBC)

    3.25 hours total (up to 3.25 hours Category C - Educational Courses) -Assumed Approval
  • College of Naturopaths of Ontario (CONO)

    3.25 credits total (up to 3.25 credits Category B) -Assumed Approval
  • Colorado Office of Naturopathic Doctor Registration (CO ONDR)

    3.25 PDAs total -Assumed Approval
  • Connecticut Department of Public Health: Naturopathic Physician Licensure (CT DPH: NPL)

    3.25 hours total -Assumed Approval
  • Council for Homeopathic Certification (CHC)

    3.25 CEUs total (up to 3.25 CEUs Category 2) -Assumed Approval
  • District of Columbia Health Regulation and Licensing Administration (DC HRLA)

    3.25 hours total -Assumed Approval
  • Hawaii Department of Commerce and Consumer Affairs Professional & Vocational Licensing (HI DCCA)

    3.25 CEs total (up to 3.25 CEs General) -Assumed Approval
  • Idaho Board of Medicine: Naturopathic Medical Board (ID BOM: NMB)

    3 hours total (up to 3 hours General) -Assumed Approval
  • Kansas State Board of Healing Arts (KS SBHA)

    3.25 CEUs total -Assumed Approval
  • Maine Board of Complementary Health Care Providers (ME BCHCP)

    3.25 hours total (up to 3.25 hours General) -Assumed Approval
  • Manitoba Naturopathic Association (MNA)

    3.25 hours total (up to 3.25 hours Category B) -Assumed Approval
  • Maryland Board of Physicians (MD BP)

    3.25 hours total -Assumed Approval
  • Minnesota Board of Medical Practice (MN BMP)

    3.25 contact hours total (up to 3.25 contact hours General) -Assumed Approval
  • Montana Board of Alternative Health Care (MT BAHC)

    3.25 hours total (up to 3.25 hours General) -Assumed Approval
  • North Dakota Board of Integrative Health Care (ND BIHC)

    3.25 credits total (up to 3.25 credits General) -Assumed Approval
  • Rhode Island Department of Health: Board of Medical Licensure and Discipline (RI DOH: BMLD)

    3.25 hours total -Assumed Approval
  • Saskatchewan Association of Naturopathic Practitioners (SANP)

    3.25 hours total (up to 3.25 hours Category C) -Assumed Approval
  • Utah Naturopathic Physician Licensing Board (UT NPLB)

    3.25 CEs total (up to 3.25 CEs General) -Assumed Approval
  • Washington State Department of Health: Board of Naturopathy (WA DOH: BON)

    3.25 hours total (up to 3.25 hours Category 2) -Assumed Approval
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This course includes:

  • 6 downloadable resources
  • Full lifetime access
  • Certificate of completion (PDF)
  • Certificate available immediately
  • CEs / PDAs as outlined
This course is intended for
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